Shaft mounting



peci'ally in motor cars.

Patented Nov. 26, 1935 UNITED STATES SHAFT MOUNTING Samuel R. Large,Bristol, Conm, assignor, by

mesne assignments, to General Motors Corporation, Detroit, Mich., acorporation of Delaware Application December 5, 1931, Serial No. 579,230

7 Claims. (01.74-424) This invention relates to shaft mountings, be-

ing particularly applicable to pinion shafts for' pinion shafts and thelike. Another object is toprovide a shaft mounting having advantageousfeatures relating to adjustment and assembly, es-

To these ends and to improve generally upon devices of this character,the invention consists in the various matters hereinafter described andclaimed.

In its broader aspects, the invention is not necessarily limited to theparticular constructions selected for illustrative purposes in theaccompanying drawings in which Fig. 1 is a sectional view taken about online l--l of Fig. 2 through the forward portion of an axle casing.

Fig. 2 is an end view of Fig. l. Fig. 3 is a sectional view taken abouton line -3 of Fig. 4 and showing a modified construc- 1on. Fig. 4 is anend view of Fig. 3.

Fig. 5 is a sectional view of a modified con struction and Fig. 6 is abottom plan view of a locking plate. The numeral 2 indicates a portionof a differential casing having reinforcing ribs 4, and numeral 6indicates a forwardly projecting tubular extension having reinforcingribs 8. Bosses lllprovide means for supporting brake rods. The casingcontains the usual differential ring gear (not shown) meshing with apinion l2 on a pinion shaft I4 which is splined at l6 for connectionwith a coupling. The tubular extension 6 has rivet holes I! forconnection with the usual torque tube (not shown). On the shaft I4 issleeved a wide, double-row bearing including a one-piece inner race ringl8 clamped against a shoulder by a nut 20. The inner race ring has endthrust shoulders providing angular contact raceways 22 for two rows ofrolling elements herein shown as balls 24. Cooperating angular contactraceways 26 are provided on a one-piece outer race ring 28 and theangles of contact diverge towards the axis of the shaft M to give abracing effect. The bearing is preloaded, that is, the rolling elementsare assembled under an initial load, as by selecting balls.

that are too large to fit between the raceways without compression. Theamount of the initial load is such that, under the expected combina- 5tion of thrust and radial load on the pinion, some initial load remainsand so firm contact of balls and races is maintained and the pinionshaft is not deflected. Thus a single bearing can be made to suflicewhere prior constructions required a plurality and the single bearingsimplifies the 5 shaft mounting and saves expense.

The bearing is secured to the pinion shaft and then slipped into acasing recess or seat 29 from the rear, the outer race ring having asliding fit and being located by a thrust washer 30 and 10 spacingwashers 32 of suitably selected aggregate thickness interposed betweenthe end of the race ring and a shoulder at the end of the recess. Therace ring projects or overhangs a little beyond the recess or seat 29and is engaged by a clamp- 15 ing plate in the form of a dished washer34 whose outer periphery lies in a recess 35. The slanting side wall ofthe washer 34 acts as a cam in cooperation with eoned surfaces 36 on aplurality of screw bolts 38. The bolts are threaded'in 20 tappedopenings extending radially through bosses "land are secured by locknuts 42. The shoulder at the end of the seat or recess 29 faces to therear and the assembled pinion shaft and bearing is inserted as a unitfrom the rear. 25 Figs. 3 and 4 show a modified construction wherein theouter race ring 28 is clamped by a series of bolts 44 extending throughlongitudinal holes in bosses or ribs 46 on the axle casing. The boltshave square heads 48 to prevent rotation, the heads projecting radiallyacross the overhanging end of the outer race ring 28 and being drawnagainst it by nuts 50 having lock washers. The bearing is located, asbefore, by a thrust washer 30 and spacing washers 32 of selectedaggregate thickness. The casing 2 is reinforced by ribs 52 v and thetubular extension 6 has a terminal stiffening rib 54. v

Figs. 5 and 6 show a further modification. o The outer race ring of thebearing carries oil shields 60, which retain grease in the bearing, anda slinger 62 is interposed between the inner race ring and the pinion sothat the grease churned up by the gears will be kept out of the bearing.45 The outer race ring is carried in a sleeve 64 and abutsagainst-aflange 66 thereof. The bearing is locked in the sleeve 64 by a secondsleeve 68 which is externally threaded in an internally threadedextension of the sleeve 64. Wrench openings 10' in the sleeve 68 providemeans for screwing the sleeves together and a set screw 12 looks thesleeves after adjustment. The splined portion i6 of the pinion shaft issecured by a rivet to a coupling 14. A suitable seal 16 is pressed intothe sleeve 68 against an internal shoulder Nov. 26, 1935. r J LEHMAN2,022,291

BOILER STAND Filed June 27, 1935 2 Sheets-Sheet l INVENTOR. Jase 0A Le/Iman.

ATTORNEY.

Nov. 26, 1935. J. LEHMAN 2,022,291

BOILER STAND Filed June 27, 1953 x 2 Sheets$heet 2 INVEN TOR. Jose ohLe/27mm.

%7/Z M, W4 A ORNEY.

Patented Nov. 26, 1935 UNITED STATES PATENT OFFICE BOILER STAND JosephLehman, Cleveland Heights, Ohio, as-

signor to The Consolidated Iron-Steel Mfg. Company of 1932, Cleveland,Ohio, a corporation of Ohio Application June 27, 1933, Serial No.677,835

9 Claims. (Cl. 248-165) This invention relates to supports, support-Other objects will be apparent to those skilled ing stands and the like,and particularly to boiler, in the art to which my invention appertains.stands. My invention is fully disclosed in the follow- The well knownvertical cylindrical boiler coming description taken in connection withthe acmonly installed in connection with domestic companying drawings,and in which: 5 heating plants to provide a supply of hot water Fig. 1is a side elevational view of a complete for the kitchen, bathroom,lavatories etc. is boiler stand embodying my invention; usuallysupported upon a stand resting upon the Fig. 2 is a top plan View of thestand of Fig. 1; floor, and supporting the lower end of the boiler Fig.3 is a view illustrating a manner of asa foot or so above the floor.Many designs of sembling parts from which the stand of Figs. 1 10 suchstands have been proposed and patented, and 2 is composed; the objectsought by the numerous inventors be- Fig. 4 is a view illustrating aflat sheet metal ing to produce a stand which could be manufac-i blankfrom which the boiler stand'of Figs. 1 and tured cheaply and which couldbe adjusted to 2 y be co cted; 7

support boilers of either of two standardized Fig. 5 is a Viewillustrating the layout of the 15 diameters. blank of Fig. 4 upon asheet or bar of sheet Such boiler stands have been provided havingmetal, and illustrating the economy of material in general three legsand adapted to support the made possible thereby;

standard small size boiler on the upper ends of Fig. 6 is a View similarto Fig. 4 illustrating a the legs and adapted to be turned upsidedown fio 20 to support the standard large size boiler on the 7 is a fragmentaryview similar to Fi 1 other ends, f the legs, illustrating a stand madefrom the blank of It is an object of this invention to provide a boilerstand of this general class and type which Fig. 8 is a V ew Similar toFig. 3 illustratin can be manufactured at the very minimum of the mannerof assembling the stand of Figs. 6 25 cost. and

Another object is to provide such aboiler stand Fig. 9 is a View il us ad fi t on which can be constructed from three identically which may beempl yed for the stand of Fig. 1 or 1 formed pieces which may betransported to the point of use disassembled, and which may be as- Fi 0is a fragmentary v w similar to a part 30 sembled by the user withoutadditional parts. of Fig. 1 i1lust a fi o Another object is to provide aboiler stand of Referring to the d w the Stand o e the class referred toformed entirely from a odi of Figs- 1 o 4 w l be d scribed in pluralitysuch as three identical sheet metal connection wi h process of m k t.

stampings. A sheet or bar of sheet metal, 5, of suitable 85 Anotherobject is to provide a boiler stand of thickness Such for example (181/3" or T3H has cut the class referred to which may be made from a or putherefrom a plurality of blanks 2. plurality of identical sheet metalstampings of As is plai y Shown in Figs- 4 and the s such shape as toreduce to the minimu the are of Z-shape. The shape of the blanks 2 and40 waste in the sheet or bar from which they are the extent of thedifferent parts thereof is pre- 40 stamped. determined so that asuccession of such blanks Another object is to provide a boiler stand ofy be p from Sheet i in mutually the class referred to comprising aplurality such nested relation whereby the waste from the sheet as threeidentical or similar pieces adapted to be I is 'minimized, tie Clearlyillustrated in g- 5 assembled together in m t ally int k d where aplurality of the blanks 2 is laid out on 45 manner without accessorysecuring means. the Sheet Another object is to provide an improved Eachblank 2 comprises a transverse portion 3,

method for making boiler stands whereby a great an p a y extending limb4 at one end of the quantity of identical parts may be made by cutp o 3a d a d w d y t nd g limb 5 at ting and pressing operations from sheetmetal the other end thereof. A flat bottomed recess 3 60 and any threeof which parts may be assembled and a similar recess 1 are formed in theextreminto a complete three-legged boiler stand of the itieS' o elimbsclass referred to without accessory attaching or A relatively deepnotch 8 is formed in the securing means and without supplemental rqupper edge of the portion 3 adjacent its left end essing operations. anda relatively shallow notch 9 is formed on 56

